export function generateUUID() {
    let d = new Date().getTime(); //Timestamp
    let d2 = (performance && performance.now && performance.now() * 1000) || 0; //Time in microseconds since page-load or 0 if unsupported
    return "uxxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx".replace(/[xy]/g, function (c) {
      let r = Math.random() * 16; //random number between 0 and 16
      if (d > 0) {
        //Use timestamp until depleted
        r = (d + r) % 16 | 0;
        d = Math.floor(d / 16);
      } else {
        //Use microseconds since page-load if supported
        r = (d2 + r) % 16 | 0;
        d2 = Math.floor(d2 / 16);
      }
      return (c === "x" ? r : (r & 0x3) | 0x8).toString(16);
    });
  }